Shearing and punching machine



2 Sheets-Sheet 1.

(No Model.)

0.0. EGHOLS. SHEARING AND PUNCHING MACHINE.

Patented July 8, 1888.

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2 Sheets-Sheet 2. C. C. EGHOLS.

SHBARING AND PUNGHING MACHINE.

No. 385,662. Patented July 3, 1888.

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lUNrTn FFlCE@ CHRISTAPHOR COLUMBUS ECHOLS, OF GRANGER, TEXAS.

SHEARING AND PUNCHING MACHINE.

SPECIFICATION 'forming part of Letters Patent No. 385,662,6lated July 3, 1888.

Application led April 13, 1888,

To all whom, it may concern:

Be it known that I, GHRIsTAPHoR COLUM- BUs Ecl-rolls, a citizen of the United States, residing at Granger, iu the county of Villiamson and State of Texas, haveinvented new and useful Improvements in a Combined Shears and Punch for Metal, of which the following is a specification.

The invention relates to improvements in combined shears and punches for metal, the main object being to cut plates or bars ot' metal longitudinally with rapidity and economy of force; and it consists in the construction and novel combination of parts, hereinafter described, illustrated in the accompanyingdrawings, and pointed out in the claims hereto ap pended.

In the drawings, Figure lis a perspective view of a machine embodying the invention. Fig. 2 is an end view showing the punching mechanism thereof. Fig. 3 is a central verlicallongitudinal sectionthrough the same. Fig. 4 is a vertical crosssection.

Referring to the drawings by letter, A designates the base-block of the machine, having the standardsB B rising from the opposite edges ot' one end thereof, and the standard C risiugi'rorn a point near the opposite end. Thev standards B have between them the central vertical rectangular open space, i), and the horizontal transverse open space b adjoining the basevblock, their feet being secured in square notches in the upper corners of the corre spending end ofthe said block. The standard C has a vertical open space, c, and a horizontal open space, c', between its opposite legs, and its feet are similarly secured at the corners at the opposite end of the base-block.

D is a transverse groove in the upper surface oi' the base-block, outside of the standard C, and rectangular in cross-section, and provided centrallyin its floor with a circular opening, (l.

E is asteel blade set in alongitudinal groove in the face ofthe baseblock, and risingtherefrom toward the spaces b and c at one side thereof.

f is a long head-block pivoted at one end in the space c, and with its free end passing into the space b, and F is a steel blade, simi lar to the blade E, set in agroove in the lower edge of the said block, and held therein by Serial No. 270,536. (No model.)

set-screws. The blades E andFcoact in shearing metal, and the former may have its outer portion raised to adjust it for thinner metal by driving long wedges under ils outer end in the groove in which it is seated.

G is a spring. strong enough tolift the headblock on its pivot, which spring has one end secured to the standard C and the other end attached by a staple and link to the upper edge of said block.

H is a cam-disk pivoted between the standards B above the adjacent end of the headblock, and provided with an outstanding arm, h, having a socket in its end for the insertion of an actuating-lever.

I is a longitudinal resting-block secured to the base-block between the feet of the standards B and C to which the blade Eis nearest, and about the height of said blade, which is beveled downwardly toward said restingblock.

il is a longitudinal bar, having its ends bent at right angles upward, and sliding up and down vertically above the resting-block between the guidepieces z" i', secured to the inner sides of the adjoining standards B C.

J J are similar curved cams pivoted at corresponding points to said standards above said upturned ends, upon which they bear and to which they are attached by the pivoted links j. The said cams have-the opstanding hanv dles j,connected at theirends by the bar j, by means of which the cams can be moved similarly and simultaneously, and are provided with the fiat edgeportions j, which, when the handles are turned vertically upward, lifting the baril toits highest point above the restingblock I, bear on the upturned ends of the said bar and prevent the bar from rising higher o1' the handles from turning inward.

The above constitutes the shearing portion F is then moved downwardly on the plate by means of the cam-disk H and the operating lever thereof, cutting said plate through from IOO end to end, the portion sheared off falling on the base block on the side of the blades away from the resting-block, whence it can be easily removed.

If it is desired to'operate the machine by steam or other motor, the pivotal pin of the cam-disk His replaced by a shaft having upon it equal-sized fast and loose pulleys, to which the belt from the pulley of the motor extends, and to one or the other of which the said belt is shifted, according as it is desired to operate the machine or not.

rlChe punching mechanism is as follows:

KK are similar guide-blocks, secu red to the outer surfaces of the standard C and provided on their inner facing edges with the guidegrooves lc.

L is a die-block having the ribs Hon its side edges moi/ing in the guide-grooves 7c, and the depending stein or stud Z for insertion in the corresponding socket of a punching-die.

M isa cam-disk pivoted lo the standard B above the said die-block and provided with an arm, m, having a socket at its end for the insertion of the operating-lever. The said disk beurs upon the upper end of the die-block and is connected to said block by the pivoted linkbar N, so that the block rises and falls with the cam-disk.

O is a bed-block fitting and sliding in the groove D, and provided with openings 0, having contours similar to those of the cross-sections of the dies used. The proper one of these openings is moved to register with the opening d, and the punching-die brought down by the means described upon the metal resting on the bed-block O, the punchings falling through the openingso and d.

If desired,the punching-die may be operated by a motor by means of mechanism similar to that described to operate the shears.

Havingdescrbedmyinvention, Iclaim* l. The combination of the base-blocks` the standards B B, rising from opposite edges of p one end thereof,the standard C, rising from the opposite end of said block, the blade resting in agroove in the upper side of the bed-block and having its outer end rendered vertically adjustable by means of long wedges inserted in the groove under the saine, the head-block pivoted at one end between the legs of the standard() and with the other end between the standards B B, the spring secured at one end to the standard C and having its other end attached to the upper edge of the head-block by a link and staple, and the cam-disk pivoted between the standards B and provided with an arm socketed at its end for the attachment of an operating-lever, substantially as specified.

2. The combination, with the base-block A, the standards B B and C, the adjustable blade E, the head-block f, having the blade F attached, the spring G, lifting the head-block, and the cam-disk H, moving the head-block downward, of the resting-block I, secured to the base-block A,and the bal-@movedby mechanism, substantially as described. between guide-pieces attached to the standard for the purpose of clasping the metal plate to be operated on between itself and the resting-block, as specified.

3. The combination, with the pivoted headhlock, the spring lifting the same, the camdisk depressing said block, the blade attached to the bed-bloclr,aiid the blade attached to the head-block, of the resting-block I, the bar ,having its ends turned up at right angles,tlie guide-pieces i', secured to the standards, the curved cams J,having the fiat edge portions]s and the armsj. the barjconnecting the ends of said arms, and the linksj` connecting said curved cams and the bar z', substantially as specified.

et. The combination. with the bed-block having the groove D, and the opening d in said groove, and the standard C, rising from said block,of the guide-blocks K,having the guidegrooves 7c, the die-bock L, having the guideribs Z and stein or stud Z, for attachment of the die,the cam-disk M, provided with the arm m, socketed at its end for the attachment of an operating-lever, the link-bar N, and the bed-block O, resting in the groove D and provided with the openings o, substantially as specified.

In testimony that I claim the foregoing as my own [have hereto aixedmy nalnein presence of two witnesses.

CHRISTAPHOR COLUMBUS ECHOLS.

Witnesses:

W. T. FARMER, JNO. DENsoN. 

